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FR2400819A1 - Fluorescent lamp electric current supply unit - generates HF interrupted DC with Zener protection against transient currents - Google Patents

Fluorescent lamp electric current supply unit - generates HF interrupted DC with Zener protection against transient currents

Info

Publication number
FR2400819A1
FR2400819A1 FR7824008A FR7824008A FR2400819A1 FR 2400819 A1 FR2400819 A1 FR 2400819A1 FR 7824008 A FR7824008 A FR 7824008A FR 7824008 A FR7824008 A FR 7824008A FR 2400819 A1 FR2400819 A1 FR 2400819A1
Authority
FR
France
Prior art keywords
interrupted
protection against
transient currents
generates
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7824008A
Other languages
French (fr)
Other versions
FR2400819B1 (en
Inventor
William C Knoll
Charles E Goepel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/826,541 external-priority patent/US4127893A/en
Priority claimed from US05/826,051 external-priority patent/US4127795A/en
Application filed by GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of FR2400819A1 publication Critical patent/FR2400819A1/en
Application granted granted Critical
Publication of FR2400819B1 publication Critical patent/FR2400819B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53832—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement in a push-pull arrangement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
    • H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
    • H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
    • H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices
    • H05B41/2825—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices by means of a bridge converter in the final stage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

A circuit is used which provides the power supply for fluorescent lamps. It is based on the use of an oscillator provided with a feedback loop to effect the required characteristics. The circuit is intended to remove the need for autotransformers working in the audible frequency range and to minimise the energy losses due to heating. The unit is based on the use of an oscillator having two series connected transistors driving a series LC resonant circuit. This is connected in parallel with a circuit providing a high frequency interrupted DC output leading to a rectifying and feedback stage. A zener diode provides protection against transient currents.
FR7824008A 1977-08-17 1978-08-17 Fluorescent lamp electric current supply unit - generates HF interrupted DC with Zener protection against transient currents Granted FR2400819A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/826,541 US4127893A (en) 1977-08-17 1977-08-17 Tuned oscillator ballast circuit with transient compensating means
US05/826,051 US4127795A (en) 1977-08-19 1977-08-19 Lamp ballast circuit

Publications (2)

Publication Number Publication Date
FR2400819A1 true FR2400819A1 (en) 1979-03-16
FR2400819B1 FR2400819B1 (en) 1984-11-09

Family

ID=27124978

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824008A Granted FR2400819A1 (en) 1977-08-17 1978-08-17 Fluorescent lamp electric current supply unit - generates HF interrupted DC with Zener protection against transient currents

Country Status (2)

Country Link
JP (1) JPS5442872A (en)
FR (1) FR2400819A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461427A1 (en) * 1979-07-06 1981-01-30 Sonelt Corp ELECTRONIC BALLAST FOR DISCHARGE LAMPS

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259616A (en) * 1979-07-09 1981-03-31 Gte Products Corporation Multiple gaseous lamp electronic ballast circuit
US4477748A (en) * 1980-10-07 1984-10-16 Thomas Industries, Inc. Solid state ballast
JPS57158994A (en) * 1981-03-26 1982-09-30 Toshiba Electric Equip Device for firing discharge lamp
JPH0734398B2 (en) * 1983-04-30 1995-04-12 松下電工株式会社 Discharge lamp lighting device
JPH02276194A (en) * 1987-09-01 1990-11-13 Global Denshi Kenkyusho:Kk Discharge lamp lighting device
JPH01157098A (en) * 1987-12-11 1989-06-20 Fuji S P:Kk Driving circuit of fluorescent lamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723848A (en) * 1972-04-17 1973-03-27 Martin Marietta Corp Electrical power inverter with sinusoidal output
US3754160A (en) * 1971-10-28 1973-08-21 Radiant Ind Inc Four-lamp driver circuit for fluorescent lamps
US3889153A (en) * 1973-10-01 1975-06-10 Iota Engineering Inc Power source for fluorescent lamps and the like
US4045711A (en) * 1976-03-19 1977-08-30 Gte Sylvania Incorporated Tuned oscillator ballast circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543582Y2 (en) * 1971-11-15 1979-02-19
JPS537379Y2 (en) * 1972-06-29 1978-02-24
JPS4933489A (en) * 1972-07-28 1974-03-27
JPS5622318Y2 (en) * 1973-12-13 1981-05-26
US4017785A (en) * 1975-09-10 1977-04-12 Iota Engineering Inc. Power source for fluorescent lamps and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754160A (en) * 1971-10-28 1973-08-21 Radiant Ind Inc Four-lamp driver circuit for fluorescent lamps
US3723848A (en) * 1972-04-17 1973-03-27 Martin Marietta Corp Electrical power inverter with sinusoidal output
US3889153A (en) * 1973-10-01 1975-06-10 Iota Engineering Inc Power source for fluorescent lamps and the like
US4045711A (en) * 1976-03-19 1977-08-30 Gte Sylvania Incorporated Tuned oscillator ballast circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461427A1 (en) * 1979-07-06 1981-01-30 Sonelt Corp ELECTRONIC BALLAST FOR DISCHARGE LAMPS

Also Published As

Publication number Publication date
JPS6262037B2 (en) 1987-12-24
JPS5442872A (en) 1979-04-05
FR2400819B1 (en) 1984-11-09

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse